Improvement in driven wells



W. S. BLUNT. flRIVEN WE LL S.

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Patented Nov.28,1876.

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WITNESSES.

INVENTOR;

UNITED STAT S 2 WILBIAM s. BLUNT, OF BAY RIDGEl, YORK, ASSIGNOR BLUNT, on SAME PLACE. V

PATENT IMPROVEMENT ml- DVRIVEN WELL-SI.-

Specification forming part of Letters Patent -To all whom it may concern:

invented, made, and applied to use Improvements in the Construction ofPumpsfor Driven Wells; and that the following is a full, clear,

and-correct description of my improvements,

the accompanying reference being bad to drawing, making-part of this specification,

and to the letters of reference marked there on, in which Figure l is an illustration showing the pipe and spear-headed point driven down to the proper depth to obtain water. Fig.2 is an illustration showing the pipe and point driven some eighteen inches beyondthe first step. Fig. 3 is an illustration, showing the pipe drawnback to the position reached in Fig. 1, and the spear-headed point is detached.

ing the spear-headed point fromthe pipesometimes used. Fig. 5 is an illustration showing the sand-pump used in combination with the pipe. Fig. 6 is an illustration showing a permanent pump and vacuum-chamber and strainer used in connection with the pipe. Fig. 7 is a sectional view of the vacuum-chamher and strainer. Fig.8 is a view of the perforated tube and spear-headed point inserted therein.

1n the drawing like parts of the invention are pointed out by the same letters-of reference.

The nature of the present invention consists in improvements in the construction of pumps for driven wells, as more fully hereinafter set forth, the object of the invention being, by

the employment of the pump constructed as described, to obtain a more freely working well.

To enable those skilled in the arts to make and use my invention, I will describe the same.

I use, first, a pipe, A, ofiron or any suitable material, perforated from its lower end about two and a half feet upward, the perforations being double, their diameters overlapping, causing the perforations to form one opening having the outline of a figure S. The perforations are thus shaped that no stone can close the perforations entirely from the outside. Second, a round spear-head point,

Fig. 4 is an illustration of the manner of detach- No. 184,695, dated- November 28; 1876-; application filed March 7-, 1876. i r a i B, made of suitable metal, the metal being continued inits manufacture, so as to form a shank or neck exactly fitting the in'teri'or{of the pipe A. The portion of the point which projects beyond theshank 'formsa square shou-lder',-upon which the lower part ofthe pipe A rests, andwhi-ch prevents the point B from being jammed in the pipe A, and also protecting the lower end of the pi pe from'injury from any stones or foreign matter while being driven. Third, I combine with a pipe,

A, after the point B has been detached'thereffrom, a vacuu-m-chamber*,D, provided upon its interior with a screen, .E, over which vacuum-cham ber may be placed an ordinaryhandpump, F, for permanent use. The vacuumchamber may be provided with a T-joint', as at a, so that connection may be estahlis'l-ied between the pipe'A and'a second or additional pump, if 'at'any time it is found remove auy'sa-nd that may accumulate around the perforations ofthe pipe A, thereby obviatiu-g the necessity of removing the pump F or the vacuum-chamber D.-

Such being the construction, I will describe the operation of the same. The pipe A, perforated as shown, and having the round'spearhead point B inserted in its lower end, is fi'rst driven into the earth in the usual manner, until the desired vein of water to be used is reached. After this vein of water is reached (which may be ascertained by sounding or any of the linown means availed of for this purpose) the pipe and point are driven some eighteen inches farther down, and the pipe is then drawn back to the position occupied by it at the termination of the first step, leaving the point B at the point to which it was driven, or some eighteen inches below the end of the pipe. If found necessary to separate in another way the point from the pipe, a rod may be inserted in the pipe A, and driven down through the same, so as to separate the point from the pipe A. This manner of separating the point from the pipe is clearly shown in Fig. 40f the drawing. The point having been removed from the pipe, an ordinary sand-pump, G, is attached .to the top of the pipe A, that the sand or debris may be pumped up through the pipe A to clear the well.

TO KATE s. f

necessary to After this has dricalin shape, provided with inclined sides, (inclining to the point where the pipe H enters it.) a It is probeen done the sand-pump may be removed,

a and a vacuum-chamber, D, provided with a sand-screen, E, may be attached to the pipe A, and above it, for permanent use, may be placed a hand-pump, F, by which the water may be pumped up through the pipe A, the

screen in the .i vacuum-chamber intercepting the sand (if any) that may be brought up withthe water. i

As already stated, the vacuum-chamber may be provided with a T-joint, so that if at any time there should be an accumulation of sand around the perforations of the pipe A, 'having a tendency to be drawn into and obstruct. the pipe, connection may be made between the pipe A and a second pump, and the sand it be pumped up without the necessity of removing the vacuum-chamber and the perma- The vacuum-chamber is cylinthe lower portion of it being nent pump.

vided with inclined sides, so that no sand or residuum shall lodge in the vacuum-chamber,

but shall settle gradually fromthe vacuum- :chamber through'ithe pipe A, to and out of the bottomot' the pipe, away fromsuction, or where suction is weakest. Inserted in the vacuum-chamber from the top is a plate, I,

having attached to it a pipe,'J, projecting downward. This pipe is provided with a conical shield, K, at its point ot'entrance, to meet anddivide the ascending stream of water, and also to receive the impact of any sand which might rise with the water. stretched over a collar attached to the pipe J at its lower end, and also over the upper portion of the shield K, attached to the pipe J at its lower end. The screen beingremoved some distance from the pipe J, which it surrounds,as shown, gives al'very large straining-surface, protected and. shielded from direct action of the sand by the action of the shield K, and-with the suction so widely distributed over the surface of the screen as to prevent the sand being drawn throughthe interstices ofthe screen. v

i The advantages of the invention thus fully The screen is I i i was described may be found inthe fact that as the perforations in the pipe A are not covered as is usual n1 drive-points,

with wire-gauze,

will enter the pipe A the water to be raised more rapidly and easily,-and that the necesthe pipe A and supplyone, from the] dc wire-gauze covering the persity of Withdrawing ing its placewith a second struction of the forations in the ordinary point being destroyed a by contact with stones orforeign' matter while being driven, is obviated.

In addition to the advantage of the vacunmchamber already set forth, by its use the flow ot the water is rendered more uniform,;and from its peculiar shape,,it' the water be let out of the pump above, it will also entirely leave the vacuum-chamber. The strainer also can be easily removed from the vacuum chamher by removing the plate I,to whichithe pipe J is attached, if, necessary to repair it.

The advantage of makingthe point detachable is, thatif at allnecessary to remove the pipe A it is more easily done, losing only the point-atrifling loss-andthat all the sand intercepted by the strainer is returned to the bottom'ot' the well, and deposited below, where the suction is weakest, and wherethe sand is least likely to give trouble, the figure 0 representing the minimum of suction, and 1,

2, 3, 4, and 5 indicating the various degrees of suction, 5 designating the maximum. 1 1

Having now set forth my invention, what I claim as new is-- V y 4 1, i 1

1. The vacuum-chamber D, provided with inclined sides, the pipe J, shield K, and sandscreeuE, constructed andoperating substantially-as and for the purposes specified. i i

2. "The combiuationot' the vacuum-chamber D, provided with inclined sides, thei pipe J, shield K, and sand-screen E, the pipe A, provided with the perforations, as showli, and the removable point B, constructedand operating substantially as described, and t'or the purposes set forth. i i WILLIAM S. BLUNTA Witnesses: i i

A. SIDNEY DOANE, HENRY 1t. GORDON. 

